Special Section on Complex Light

Radially polarized cylindrical vector beams from a monolithic microchip laser

[+] Author Affiliations
Darryl Naidoo

National Laser Centre, Council for Scientific and Industrial Research, P.O. Box 395, Pretoria 0001, South Africa

Michael Fromager, Kamel Ait-Ameur

Université de Caen Basse Normandie, Centre de Recherche sur les Ions, les Matériaux et la Photonique, Ecole Nationale Supérieure des Ingénieurs de Caen, Unité Mixte de Recherche 6252, Commissariat à l’Energie Atomique, Centre National de la Recherche Scientifique, Boulevard Maréchal Juin, Caen F14050, France

Andrew Forbes

University of the Witwatersrand, School of Physics, Private Bag 3, Wits 2050, Johannesburg, South Africa

Opt. Eng. 54(11), 111304 (Jul 06, 2015). doi:10.1117/1.OE.54.11.111304
History: Received April 15, 2015; Accepted June 8, 2015
Text Size: A A A

Abstract.  Monolithic microchip lasers consist of a thin slice of laser crystal where the cavity mirrors are deposited directly onto the end faces. While this property makes such lasers very compact and robust, it prohibits the use of intracavity laser beam shaping techniques to produce complex light fields. We overcome this limitation and demonstrate the selection of complex light fields in the form of vector-vortex beams directly from a monolithic microchip laser. We employ pump reshaping and a thermal gradient across the crystal surface to control both the intensity and polarization profile of the output mode. In particular, we show laser oscillation on a superposition of Laguerre–Gaussian modes of zero radial and nonzero azimuthal index in both the scalar and vector regimes. Such complex light fields created directly from the source could find applications in fiber injection, materials processing and in simulating quantum processes.

Figures in this Article
© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Darryl Naidoo ; Michael Fromager ; Kamel Ait-Ameur and Andrew Forbes
"Radially polarized cylindrical vector beams from a monolithic microchip laser", Opt. Eng. 54(11), 111304 (Jul 06, 2015). ; http://dx.doi.org/10.1117/1.OE.54.11.111304


Tables

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.